package edu.sctu.demo;

import javax.servlet.*;
import java.io.IOException;
import java.nio.file.DirectoryStream;
import java.util.logging.Filter;
import java.util.logging.LogRecord;

public class DemoOneFilter implements javax.servlet.Filter
{


    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest,
                         ServletResponse servletResponse,
                         FilterChain filterChain)
            throws IOException, ServletException {
        System.out.println("这是第一个过滤器！");

        // !!! 一定要加上
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {

    }}

